CN105264095A - Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation - Google Patents
Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation Download PDFInfo
- Publication number
- CN105264095A CN105264095A CN201480023504.3A CN201480023504A CN105264095A CN 105264095 A CN105264095 A CN 105264095A CN 201480023504 A CN201480023504 A CN 201480023504A CN 105264095 A CN105264095 A CN 105264095A
- Authority
- CN
- China
- Prior art keywords
- spray gun
- temperature measurement
- submergence
- slag
- acceptor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009529 body temperature measurement Methods 0.000 title claims description 36
- 238000002347 injection Methods 0.000 title claims description 35
- 239000007924 injection Substances 0.000 title claims description 35
- 238000009434 installation Methods 0.000 title abstract description 4
- 239000002893 slag Substances 0.000 claims abstract description 124
- 239000007921 spray Substances 0.000 claims description 243
- 239000007789 gas Substances 0.000 claims description 30
- 238000005507 spraying Methods 0.000 claims description 25
- 238000009853 pyrometallurgy Methods 0.000 claims description 19
- 239000002826 coolant Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 38
- 239000001301 oxygen Substances 0.000 description 38
- 229910052760 oxygen Inorganic materials 0.000 description 38
- 239000000446 fuel Substances 0.000 description 37
- 238000000034 method Methods 0.000 description 34
- 230000002829 reductive effect Effects 0.000 description 25
- 230000005855 radiation Effects 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 22
- 239000000203 mixture Substances 0.000 description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 230000000007 visual effect Effects 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000008859 change Effects 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000004861 thermometry Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000007664 blowing Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005272 metallurgy Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- 239000011253 protective coating Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012429 reaction media Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000001931 thermography Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004441 surface measurement Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
- G01J5/004—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids by molten metals
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C2005/5288—Measuring or sampling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A temperature measuring apparatus for a top submerged lancing installation, for use in measuring the temperature of a molten bath that includes a slag phase, during a pyro-metallurgical operation conducted in a reactor of the installation, includes a top submerged injecting top submerged injecting lance having at least an outer pipe and an inner pipe. A bore is defined by the inner pipe and an annular passage is defined in part by an inner surface of the outer pipe. The apparatus further includes a pyrometer device of which at least a sensor head part is mounted in relation to the top submerged injecting lance and operable both to receive infrared energy passing longitudinally within the lance from an outlet end of the lance. The sensor head part also is operable to focus the received infrared energy to enable generation of an output signal or display indicative of the temperature of a molten bath in which an outlet end portion of the lance is submerged and from which the infrared energy is received.
Description
Technical field
The present invention relates to for the thermometric equipment in the process of the molten bath pyrometallurgy operation undertaken by top submerged lance spray technology.
Background technology
The interactional bath smelting between molten bath and oxygenous body source or other pyrometallurgy operation is needed to utilize several different air feed to arrange.Generally, these operate the direct injection involved to molten matte/metal.This can pass through the bottom blowing air port as in Bessemer type stove or the cross air blow cause for gossip as in the converter of Peirce-Smith type is existing.Alternatively, gas injection can be sprayed to provide top blast or submergence by means of spray gun.The example that top-blown spray gun sprays above molten bath, is blown into pure oxygen with KALDO and the BOP/BOF steelworks with molten iron production steel.Another example is provided by Mitsubishi process for copper, wherein sprays spray gun and causes the injection of the oxygen-containing gas that will provide in melting and matte transformation stage, to clash into and to penetrate the top surface in molten bath, to produce respectively and to change matte.When submerged lance is sprayed, spray gun lower end is submerged, thus spray occur in molten bath molten slag layer within instead of from the upper side, to provide top submerged lance to spray, its known example is that the OutotecAUSMELT being applied to smithcraft widely pushes up submergence spraying technique.
For the injection of two kinds of forms from top, that is, utilize top blast and top submerged lance to spray, spray gun stands fierce to account for main bath temperature.Top blast in Mitsubishi process for copper uses the multiple relative little steel spray gun with the interior pipe of about 50 mm dias and the outer tube of about 100 mm dias.Interior pipe ends in the level place of about furnace top cover, far above reaction zone.Outer tube is rotatable with the water-cooled collar preventing it from adhering to furnace top cover place, and it extends downwardly into the gas space of stove to locate about 500-800 millimeter place on the upper surface in molten bath, its lower end.Carry aerial particulate charge secretly and blown over interior pipe, and oxygen-rich air is by the annular space of blowing between pipeline.Although outer tube lower end has spacing above weld pool surface and spray gun is cooled arbitrarily by the gas by it, outer tube flashes back about 400 millimeters every day.Therefore outer tube slowly reduces, and when needed, new part is attached to the top of outer consumption pipe.
As in above-mentioned Mitsubishi technique, more much bigger than the spray gun for top blast for the spray gun pushing up submerged lance injection.As supposed below, top submergence is sprayed spray gun and is usually had pipe and an outer tube at least one, but also can have concentric at least one with inner and outer tubes and manage.The outer tube diameter that spray gun has 200 to 500 millimeters or larger is sprayed in the submergence of typical big scale top.In addition; spray gun is much longer; and extend downwardly through the top cover of the top submergence injection reactor that can be about 10 to 15 meters high; thus the lower end of the outer tube slag that is immersed in molten bath is up to about the degree of depth of 300 millimeters or more, but to be formed on the outside surface of outer tube by the cooling effect of the jet flow stream by flowing in it and the tectum solidifying slag kept is protected.Interior pipe can end in the level approximately identical with outer tube, or the higher level up to about 1000 millimeters above the lower end ending in outer tube.Therefore, it can be the situation of the lower end submergence only having outer tube.Under any circumstance, spiral vane or other flowing shaping device can be arranged on interior pipe outside surface on to cross over the annular space between interior pipe and outer tube.Blade gives strong vortex effect along this annular space to air or oxygen-enriched stream, and for strengthening cooling performance and guaranteeing that gas is fully mixed with the fuel supplied by interior pipe and feed material, this mixing occurs in the mixing section limited by outer tube substantially, this mixing section below the lower end of interior pipe, enough distances above the lower end that wherein, pipe ends in outer tube.
Wear and tear and flash back in the lower end of outer tube that spray gun is sprayed in top submergence, but with compared with intectate situation, the significantly reduced speed of the freezing slag coating of protected property carries out.But this is controlled by the operator scheme of pushing up submergence spraying technique in sizable degree.Although in the hyperergy that the lower end of spray gun is immersed in molten slag bath and corrosive atmosphere, the pattern of this operation makes this technical feasibility.The interior pipe of top submergence injection spray gun can be used for supply feed material (such as will be ejected into concentrated fusing assistant and the reductive agent of the molten slag layer in molten bath) or it can be used as fuel.Oxygen-containing gas (as air or oxygen-rich air) is by the annular space supply between each pipeline.Before submergence injection beginning in the molten slag layer in molten bath, spray gun is positioned at spaced apart suitable distance above slag surface with its lower end (namely the lower end of outer tube).Oxygen-containing gas and fuel (such as oil fuel, fine coal or hydrocarbon gas) are supplied to spray gun, and gained oxygen/fuel mixture combusts is to produce the flame jet flow struck on slag.This can cause slag splash and outside lance tube formed by the concretionary molten slag layer of air-flow through spray gun, to provide above-mentioned solid slag tectum.Then spray gun can reduce the injection realized in slag, and the lower scope of spray gun to be remained on by the input channel of spray gun and keeps solidifying slag coating and under protecting the temperature of outer tube by oxygen-containing gas.
The relative position that spray gun has the lower end about inner and outer tubes is usually sprayed in new top submergence, and it is the optimum value about the specific pyrometallurgy action pane determined during the design.These relative positions can be different for the different purposes of top submergence spray technology.But along with wearing and tearing gradually and flash back in the lower end of outer tube, the length of any mixing section formed between the lower end of interior pipe and the lower end of outer tube drops into the optimum value lower than operating about given pyrometallurgy gradually.Equally, if outside pipe lower end between have zero offset, then in, the lower end of pipe can become and is exposed to slag, and is also worn and stands to flash back.The lower end of at least one outer tube needs the clean edge being frequently cut to provide the duct length of suitable diameter to be welded to it, comes with the best relative position re-establishing lower end of duct to optimize melting condition.
Spray spray gun about top blast and top submergence, advised that fluid cooling protects spray gun from the high temperature run in fire metallurgy process.Example for the fluid cooling spray gun of top blast is disclosed in United States Patent (USP) 3223398 (authorizing Bertram etc.), 3269829 (authorizing Belkin), 3321139 (authorizing DeSaintMartin), 3338570 (authorizing Zimmer), 3411716 (authorizing Stephan etc.), 3488044 (authorizing Shepherd), 3730505 (authorizing Ramacciotti etc.), 3802681 (authorizing Pfeifer), 3828850 (authorizing McMinn etc.), 3876190 (authorizing Johnstone etc.), 3889933 (authorizing Jaquay), 4097030 (authorizing Desaar), 4396182 (authorizing Schaffar etc.), in 4541617 (authorizing Okane etc.) and 6565800 (authorizing Dunne).
In these reference except authorize the people such as Bertram 3223398 and authorize Belkin 3269829 except, all utilize fluid flowing from feed path to spray gun that be arranged to the enable exit tip along and flow back to the concentric outermost tubes come, although the people such as Bertram uses the variant of this flow limitation to the nozzle segment of spray gun from tip along backward channel.Although Belkin provides water coolant, the oxygen that its length along interior pipe is supplied along the circular channel between inner and outer tubes with mixing by outlet, so that as the vapo(u)r blasting with oxygen.The heating of water and evaporation provide the cooling of the spray gun of Belkin, and the steam of generation and injection is considered to tropical melt back pond.
United States Patent (USP) 3521872 (authorizing Themelis), 4023676 (authorizing Bennett etc.) and 4326701 (authorizing Hayden, Jr. etc.) claim the spray gun disclosing and spray for submergence.The suggestion of Themelis is similar to the suggestion of the US3269829 authorizing Belkin.All employ and also rely on by the air-flow that adds water the spray gun flashing to injection stream to cool, that is, a kind of layout be different from by heat trnasfer water cooling spray gun in closed system.But the layout of Themelis does not have interior pipe, and gas and water are along the single pipeline supply of vaporize water.Although the suggestion of the people such as Bennett is called spray gun, be more similar to the air port of the perisporium being ejected through the stove comprising molten metal under the surface of molten pig Base Metal.In the suggestion of the people such as Bennett, extend in ceramic sleeve for the concentric tube sprayed, and water coolant is by being wrapped in the piping loop in pottery.When people such as Hayden, Jr., providing of cooling fluid is only carried out in the upper extent of spray gun, and to the lower ranges of submergence exit end comprising the single pipeline be wrapped in refractory cements.
The restriction of the suggestion of prior art is found by Themelis.This discussion relates to the copper refining utilizing oxygen spray.Although copper has the fusing point of about 1085 DEG C, Themelis points out to the temperature of superheat of 1195 DEG C, to carry out refining at about 1140 DEG C.At such temperatures, best stainless steel or the spray gun of steel alloy also only have very little intensity.Therefore, even top-blown spray gun also utilizes circulating fluid to cool usually, or when the submerged lance of the people such as Bennett and Hayden, Jr., utilizes fire-resistant or silicate lining layer.Authorize the improvement on Belkin that the propelling of the US3269829 of Belkin and Themelis provide, utilize and can be realized powerful cooling by the evaporation of water mixed in jet flow stream.At each occurrence, evaporation will realize and cool in spray gun.The improvement of Themelis on Belkin is that water coolant is in atomizing state before water coolant is supplied to spray gun, occurs structure failure and the risk of the blast that the injection of liquid water causes in molten metal to avoid spray gun.
The United States Patent (USP) 6565800 authorizing Dunne discloses for using not reaction carriers that injecting solid particulate material is sprayed spray gun to the solid of melting material.That is, spray gun only enters melt for transporting particulate material, instead of as the device of enable material mixing and burning.This spray gun has the central cores pipe being blown into particulate material by it, and be in the direct thermo-contact of the outside surface of core pipe, double-walled envelope that the refrigerant of such as water and so on can be circulated by it.This chuck extends along a part for the length of core pipe, leaves the outstanding length of core pipe at the exit end of spray gun.This spray gun has the length of at least 1.5 meters, and as can be seen from accompanying drawing true to nature, the external diameter of this chuck is obviously the order of magnitude of about 12 centimetres, and the internal diameter of this core pipe is the order of magnitude of about 4 centimetres.This chuck comprises the continuous length welded together, the major length of steel and be copper or copper alloy closer to the end portion of the exit end of spray gun.The outstanding exit end of interior pipe is stainless, and it is connected to the major length of interior pipe by threaded engagement for the ease of replacing.
The spray gun authorizing the US6565800 of Dunne is considered to the Hlsmelt technique of the production being applicable to molten pig Base Metal, and this spray gun can spray ferriferous oxide feed material and carbon containing reducer.In this case, under spray gun is exposed to mal-condition, comprise the service temperature of the order of magnitude of about 1400 DEG C.But, described in Themelis, copper have about 1085 DEG C fusing point and even at about 1140 DEG C at the temperature of 1195 DEG C, stainless steel has very little intensity.Perhaps the suggestion of Dunne is applicable to the situation of Hlsmelt technique, assuming that chuck cross section and the ratio of core pipe cross section have the height ratio of about 8:1 and relate to the words of little total cross section when cooling.The spray gun of Dunne is not that spray gun is sprayed in top submergence, is not suitable for top submergence spraying technique yet.
Example for the spray gun of the fire metallurgy process based on top submergence spraying technique is provided by the United States Patent (USP) 4251271 and 5251879 all authorizing Floyd and the United States Patent (USP) 5308043 of authorizing Floyd etc.As detailed above, slag, before startup pyrometallurgy operation, during top blast to the period in molten slag layer, initially utilizes spray gun to splash.Top blast causes cutting down slag to form slag coating on the lower ranges of spray gun, and this slag coating is become and solidified by the high speed top-blown gas producing splashing, to realize the protection tectum of solid slag on spray gun.Top submergence injection period in slag keeps solid slag tectum, although then spray gun is lowered to be immersed in molten slag layer by lower outlet end, sprays with the top submerged lance required for allowing in slag.The spray gun all authorizing the United States Patent (USP) 4251271 and 5251879 of Floyd operates with this type of cooling, by jet flow stream when United States Patent (USP) 4251271, and the gas of blowing over guard shield pipe is added by this gas when United States Patent (USP) 5251879, keeping solid slag layer, is unique.But, about the United States Patent (USP) 5308043 authorizing the people such as Floyd, except the cooling provided by jet flow stream and the gas of blowing over guard shield pipe, provide cooling by the cooling fluid cycling through the circular channel limited by outer three pipes of spray gun.This becomes possibility by providing the annular tip of solid alloy steel, and wherein this annular tip connects around the outermost in those three pipes of the circumference of spray gun and interior pipe at the exit end place of spray gun.This annular tip is cooled by jet flow stream and the coolant fluid also flowed by the upper surface across this tip cools.The solid form of this annular tip and cause this tip to have the good level of resistance to wearing and flashing back with Steel Alloy finished product.This layout can realize the spray gun actually operating life-span before tip changed by needs, to guard against the risk making cooling fluid be emitted on the spray gun fault in molten bath.
Other examples for pushing up the spray gun of submergence spraying technique are provided in our CO-PENDING application WO2013/000017, WO2013/029092 and PCT/IB2012/056714.The invention of WO2013/000017 relates to having at least sprays spray gun with the top submergence of outer substantially concentric pipeline, the setting that the longitudinal adjustable of relative position of outer tube and next most interior conduit keeps desired during use to make the mixing section of the lower outlet end being in them, to compensate the wearing and tearing of outer tube lower end and to flash back.The invention of WO2013/029092 relate to there are at least inner and outer tubes, the top submergence of guard shield that separates around outer tube and with outer tube sprays spray gun, this guard shield relative to the longitudinal adjustable of the outer tube of spray gun to safeguard or to change the longitudinal pitch between guard shield and the exit end of outer tube.Application PCT/IB2012/056714 provides the top submergence of the facility of the circulation had for coolant fluid to spray spray gun, and the contraction in the lower end of wherein this spray gun causes the rate of flow of fluid between the end wall of the backflow of the coolant fluid for the outermost tubes along spray gun to increase.
The pyrometallurgy operation utilizing both top blast and top submerged lance injection to carry out produces very high bath temperature, and under the extreme case allowed by top submergence spraying technique, scope is up to about 1650 DEG C.But accurately determining of the temperature in bath smelting technique is the key that process control and optimization operates.In some cases, it is necessary that bath temperature remains in relatively narrow scope, and other operate in when changing between operation stage need can change to another from a bath temperature level.Under any circumstance, the operation at lowest possible temperature is provided in cost and environmental footprint aspect the most effectively operates.
Traditionally, bath temperature is measured by relating to the method utilizing following measure or at least infers:
(I) be installed in sidewall of reactor and or to be embedded in or by the outstanding thermopair of the refractory liner of reactor vessel;
(ii) thermopair in letdown tank or weir is placed on;
(iii) the tectal thickness inspection in molten bath on cold soaking bar is chilled in; And/or
(iv) pyrometer of port or top cover installation.
But other methods upgraded of suggestion comprise heat pipe, optical fiber and infrared technology.
Traditional method has encountered high fixing and running cost, reliability, out of true and such as from the problem of the interference of opaque flue gas and smog, although the high temperature measurement art of the pyrometer installed by top cover or port has been proved to be only useful in some cases.The method upgraded also must prove reliable or viable commercial.
Optics thermometry based on infrared technology uses in many ways.Being published in " technique heat magazine (ProcessHeatingMagazine) ", title in 2010 by Kresch is that the paper of " benefit of stationary heat imaging " is pointed out, the quantity of radiant energy from object is the function of object temperature and radiant ratio.Kresch represents thermal imaging camera by surface measurements temperature variation to identify focus or cold spot, to allow larger productivity and throughput capacity adjusting process parameter.In contrast, IR premise sensors is believed to only single point temperature reading.Kresch contemplates the application of the thermal video camera at the appropriate point place be arranged in incinerator, to prevent by the undetected big fire caused of burning away the refuse.Its other party many have been advised or have been used thermal video camera to monitor steel stream when toppling over steel stream, terminate as early as possible and topple over during to make slag to be detected in stream.
Being published in " technique heat magazine (ProcessHeatingMagazine) ", title by people such as Canfield in January, 2009 is that the paper of " ultra-wide infrared rays " relates to the use of also measuring the IR sensor of the IR energy from personal radiation as the temperature of health and the function of radiant ratio.But use thermal video camera contrary to the conversion of the image that can be presented on screen with detected quantity of radiant energy, the Voice segment of institute's radiation can be exaggerated to generation and be shown as on the detector of the electrical signal of temperature reading by IR sensor.As with thermal video camera, sensor can be used for fixing and mobile object or health.The people such as Canfield relate to measurement and are applied to and are set in the tectal temperature on continuous paper tinsel.IR sensor is considered to the energy that can receive from the large regions of object or the radiation of little place.By Starrh in June, 2007/July the title be published on " Asia-Pacific industrial automation (IndustrialAutomationAsia) " 53-54 page be the similar article of " spectrum convolution ", when describing IR sensor or thermometer, discuss the importance of target sizes relative to the sensor visual field or place size.These sensors are considered to have the sensor of the target range for the place diameter that can change from 2:1 model to more expensive 300:1 model.In that example forming lamination, the article of Starrh is also by reference to be applied to and the tectum be set on band is described.In addition, Raytek website www.raytek.com details the temperature for measuring molten metal alloy under vacuo and so that the use of the IR sensor of investment cast under needing to remain on equilibrium temperature in " success story 64 ".Two sensors are used for the output allowing to compare them, and think that decreasing operator needs to use frequently to check the quantity of leaching probe (dipprobe) of temperature.
These application of IR thermal imaging camera and infrared sensor or thermometer are not all found the temperature being suitable for measuring molten bath in the fire metallurgy process undertaken by top submergence spraying technique.Although the temperature survey that the paper of the people such as Kresch, Canfield and Starrh and " successful case 64 " relate to about 2730 °F (about 1500 DEG C) changed to " successful case 64 " from about 685 °F (about 365 DEG C) of the people such as Canfield is true.At least in upper end, this scope is applicable to pyrometallurgy operation.
The optical pickocff and controller that suggested and operate for improvement of type alkalescence oxygen converter (BOF) is published in " the iron and steel project information slip " in February calendar year 2001 by USDOE industrial technology, Energy efficiency and renewable energy source office.The lance tip that this suggestion is being blown into oxygen by it downwards with supersonic speed above the molten bath of the pig iron and slag installs optical pickocff.The sensor be arranged on this spray gun can utilize the technology based on optical imagery, determine the bulk temperature (bulktemperature) in molten bath, and oxygen is not blown into according to slag temperature.In addition, sensor can be blown into period supervision supersonic oxygen displacement slag to expose the focus radiation of the iron of the surf zone of iron at oxygen.In addition, this layout is considered to be provided for measuring for improvement of the melt pool height of type spray gun operating practice between scavenging period, and can observe furnace interior to assess wearing and tearing and slag splashing.
Other people suggested the infrared optical sensor utilized for the temperature survey (production as titanium-containing slag and iron silicon and ferrochrome exothermic) in submerged arc furnace.But this use has mainly focused on the temperature distribution of the electrode determining to be formed in stove between smelting period.Such as, title see people such as Farina is " measurement of the temperature distribution in the electrode for silicon Metal Production " (IAS'2004, Seattle, 2004,195-199 page) the title of the people such as paper and Laohasongkram be " for electrically encircleing the application of the infrared heat detector of furnace transformer " (ICCAS, 17-20 day in October, 2007, South Korea Seoul) paper.
The present invention relates to and carry out in the process of pyrometallurgy operation in top submergence jet apparatus, for measuring the modified version temperature measurement equipment of the temperature in the molten bath of top submergence jet apparatus.
Summary of the invention
According to the present invention, be provided in the reactor of device and carry out between pyrometallurgy working life, for measure the temperature in the molten bath comprising slag phase, for pushing up the temperature measurement equipment of submergence jet apparatus.This equipment comprises the top submergence with at least one outer tube and an interior pipe and sprays spray gun, the hole limited by interior pipe and the circular channel that limits, inner surface portion ground by outer tube.This equipment also comprises the pyrometer device that its at least one acceptor unit is installed with being relevant to top submergence injection spray gun, this acceptor unit can receive from the exit end of spray gun longitudinally through the infrared energy in spray gun, and this pyrometer device can produce output signal or the display of the temperature in instruction molten bath according to the infrared energy received, wherein the exit end of spray gun to be partially immersed in this molten bath and from this molten bath receiving infrared-ray energy.
It can be in use that spray gun is sprayed in the top submergence of this equipment, as by a kind of gas of lance ejection or the result of multiple gases, is cooled and only keeps the top submergence of protectiveness slag coating to spray spray gun thus.Alternatively, spray gun can cool additionally by the circulation of coolant fluid (such as then turning back to inlet end from inlet end to exit end).For the cooling by means of circulating coolant fluid, spray gun can have double-walled outer tube, provides sleeve to be separated input and output coolant flow between the inner and outer wall of outer tube.
In the use of temperature measurement device, the exit end part of TSL spray gun has such length: make the slag phase time when being immersed in molten bath, the submergence of oxygen-containing gas is sprayed and is in desired depth in slag, and the burning of fuel produce slag mutually in the flame of combustion zone is provided.In addition, submergence is injected in slag and produces strong turbulence and the splashing of top surface from slag.Before top submergence injection spray gun is submerged, it is suspended in a bit of distance above slag surface, and the fuel sent from the outlet of spray gun and the mixture burns of oxygen are to produce strong flame jet flow, this strong flame jet impinges on slag surface with the tectum of the splashing and spray gun lower ranges that cause slag.This tectum is solidified by the cooling performance of gas being sprayed spray gun by top submergence, and this solidifies slag coating and can be retained and protect spray gun after exit end is partially immersed in slag.Strong flame prevents the slag in molten bath or other material from rising in the submergence exit end part of top submergence injection spray gun, and the exit end of leap and adjacent spray gun keeps the immersed surface region in molten bath.Infrared radiation face is appointed as in this article in immersed surface region in molten bath, and provides this infrared energy from also longitudinal by the surface in spray gun by its radiation.At least the part on infrared radiation surface drops in the visual field of the acceptor unit of pyrometer device, and its be can determine the temperature in molten bath on infrared radiation face this visual field in the infrared energy of radiation.Infrared radiation surface normally slag surface, although but submergence spray be in slag mutually in, but flame may extend into the phase be under slag, be in the phase under the slag limiting infrared radiation surface to make it, just as by from apparent below with reference to the United States Patent (USP) 5888270 authorizing the people such as Edwards.
In the device, at least acceptor unit of pyrometer device is arranged within the periphery of at least outer tube of spray gun, in the circular channel such as between the inner and outer tubes of spray gun only having two pipelines with being relevant to top submergence injection spray gun.When push up submergence spray spray gun comprise at least one intervalve between the inner and outer pipe sections, within the periphery that at least acceptor unit of pyrometer device can be in outer tube and between interior pipe and the interior pipe of the next one; Or between two intervalves; Or between interior pipe and next outermost tubes.At least acceptor unit of pyrometer device even can be in the periphery of interior pipe, stands the fuel/reductive agent (as hydrocarbon gas) of the suitable type not hindering the operation of device.But no matter comprise top submergence and how spray the quantity of the pipeline of spray gun, at least acceptor unit of pyrometer device is preferably within the periphery of interior pipe.Acceptor unit can be contiguous to the inlet end that spray gun is sprayed in top submergence, although acceptor unit preferably separates with each in the entrance and exit end of spray gun.Compared with the inlet end of spray gun, the acceptor unit of pyrometer device can closer to arriving exit end.The exit end that acceptor unit most preferably sprays spray gun with top submergence separates the sub-fraction of spray gun length.At each occurrence, acceptor unit as received by within it acceptor unit by the cone angle of the infrared energy of lance outlet end and determined from the requirement in the place or areas accept infrared energy with the infrared radiation face allowing reliable thermometric diameter according to acceptor unit, can be positioned at top submergence and sprays spray gun.The position of the acceptor unit of pyrometer device preferably causes the visual field of acceptor unit to have enough diameters, and this visual field is substantially by region, place or area filling.This visual field can be filled by infrared radiation surface substantially, makes this place or region correspond essentially to infrared radiation face.
In whole specification sheets, when carrying out pyrometallurgy operation, the appointment that the end of spray gun is sprayed in the top submergence as inlet end and exit end is relevant to the direction passing into the slag phase being injected into molten bath along spray gun fuel/reductive agent and oxygen-containing gas.When for pushing up submergence injection pyrogenic process metallurgical operations, thus entrance and exit end corresponds respectively to the top and bottom that spray gun is sprayed in top submergence.In addition, about term problem, to the referential expression of fuel/reductive agent away from lance outlet end place, be suitable as the fuel of burning to produce combustion flame by the burning being formed in the fuel/reductive agent of lance outlet end and the mixture of oxygen-containing gas by the injection in slag, and be suitable as at least one material of the reductive agent that can disperse in slag.The burning degree of the material as fuel is determined by the oxygen of lance ejection and the ratio of fuel/reductive agent by adjustment, can adjust as requested as fuel with as the ratio of the material of reductive agent, to produce the oxidation or reductive condition of suitably optimizing given pyrometallurgy operation.
The acceptor unit of pyrometer device is preferably oriented to have and sprays the substantially parallel axis of cone line of the longitudinal axis of spray gun with top submergence.This orientation makes it possible to basically completely circular place or areas accept infrared energy, also can accept although place or region are ellipses.When in the circular channel between acceptor unit is positioned at two pipelines that top submergence sprays spray gun, place or region can have the less diameter of the possible diameter in place when being positioned in this interior pipe than acceptor unit or region usually.That is, the Zhong Shi visual field, circular channel be between pipeline at acceptor unit is less, and needs use the acceptor unit and/or location receivers unit with relative small-angle in the comparatively short distance from lance outlet end.In each case, place or region are on infrared radiation face, this infrared radiation face limits or in molten bath below the top surface of slag phase, by molten bath, and adjoin and extend through the exit end that spray gun is sprayed in top submergence, but being slightly shifted from exit end by the combustion flame that the burning of the fuel composition of fuel/reductive agent produces.Spray in pyrogenic process metallurgical operations in the submergence of nearly all top, surface will be slag surface.But, when the flame causing penetrating matte below slag or metallographic phase is sprayed in submergence (such as blister copper concentrate on slag mutually under, in the patent US5888270 that authorizes the people such as Edwards), this surface is limited under slag by matte or metallographic phase.The people such as Edwards can reasonably be understood to imply even push up submergence spray the exit end of spray gun can be in copper mutually in, and although this top submergence injection spray gun for equipment of the present invention is possible, but do not wish so, because it normally there is no need and before it needs to change and repair (if needing in practice), causes significantly shortening spray gun operation lifetime.
Utilize temperature measurement equipment of the present invention, the acceptor unit of pyrometer device can receive from the place on the surface limited by molten bath or area radiation and assemble towards the infrared energy of the acceptor unit in the cone angle arranging acceptor unit.Pyrometer device can comprise: lens unit, and it receives and focused IR heat input; And detector cell, by lens unit by focus on transmission ofenergy on detector cell.Detector cell produces the electrical signal indicated in the place of weld pool surface or the bath temperature in region.Detector element signals can be delivered to the amplifier unit of pyrometer device and the amplifying signal produced by amplifier unit is delivered to and is positioned at the display unit that spray gun outside is sprayed in top submergence, and this display unit can be presented at the bath temperature that place or region place are measured.Detector cell needs about the data of molten bath in the radiant ratio at place or region place usually, and this can be measured by pyrometer device, or as the input data to device, provide from the data of issue radiant ratio of the material in the molten bath of the radiated infrared heat input processed about generation pyrometer device.Usually in order to the input data of the pyrometer devices with radiation rate supply device of Single wavelength thermometry operation.But about with the device of two or multi-wavelength thermometry operation, if radiant ratio is substantially identical under each wavelength, then determine can based on the ratio of the spectrum energy under two different wave lengths of the infrared energy received for temperature.
Acceptor unit can comprise being included in and is relevant to top submergence by it and installs the lens unit of the pyrometer device in the public casing of this device, detector cell and amplifier with spraying spray gun.But, this also can and usually can need to device supply coolant fluid, the envrionment temperature avoiding the parts of device overheated to keep this device to be in.But, the alternative method of usual hope detector cell and amplifier is accommodated in top submergence with independently acceptor unit casing to spray spray gun outside, this independently acceptor unit casing comprise acceptor unit and preferably comprise lens unit, this acceptor unit casing be relevant to top submergence spray spray gun installs.In the case of the latter, acceptor unit and its casing comprise long-range head assembly, it is communicated to connect with detector and amplifier unit by line or cable (such as optical cable), and this line or cable are upward through the exit end of spray gun from acceptor unit spray gun, arrives detector cell.This communication connection between the two can suitably be protected, and can at high temperature work.Alternatively, when acceptor unit, detector cell, also amplifier may be had to be in public casing, electric wire or cable can extend up to exterior display device in spray gun.
As in " South Africa pyrometallurgy technology " as on March 7th, 2011 lecture course, pointed by " the Slag Properties estimation " delivered by the Mills of London's Imperial College, emissivity values depends primarily on surface instead of entirety (bulk), just as surface tension.In the slag not being relatively simple known features, pyrometer device can preferably can produce in the determination of this pyrometer device from the radiant ratio in the molten bath in the place of its receiving infrared-ray energy or region.Mills points out further, and slag is translucent to infrared radiation, thus causes radiant ratio with slag change in depth.If (namely the product of slag uptake factor and the slag degree of depth in units of rice is greater than 3, if α * is d>3, wherein " α " is uptake factor, and " d " is the degree of depth in units of rice), then slag is regarded as being in the thick condition of optics.But if available, the slag degree of depth in top submergence spraying generally will be enough to meet this relation, and can rely on the available emissivity values of announcement.Be in many instances in the upper area of slag phase this is because top submergence is sprayed, thus the degree of depth substantially of slag is all under the exit end of top submergence injection spray gun, more particularly, be under infrared radiation surface.In addition, the temperature survey that equipment of the present invention allows, although intercept slag mutually in plane, substantially measure the temperature of slag phase integrally.This is because the surface in that plane measuring its temperature, that is, the infrared radiation face that is positioned at, the visual field of pyrometer device, be remain on turbulent flow slag integrally mutually in the surface of a depth.This is the measurement of the temperature of the atop surface area being different from slag phase completely, even if slag is without undergoing being sprayed the turbulent flow produced by top submergence, because the temperature at such top surface place significantly can be different from the slag temperature in slag.Depend on the afterfire technique of whether carrying out flue gas on slag, the surface temperature at slag top can be significantly higher than or lower than the temperature in slag.
In the apparatus of the present: invention, the head assembly of acceptor unit, or acceptor unit and lens, or whole pyrometer device, can be relevant to top submergence and spray spray gun ground and install in a multitude of different ways.Head assembly is fixed on this at least one pipeline by the bracket (such as framework or support) be fixed at least one pipeline, bracket do not hinder by top submergence spray spray gun, enter molten slag layer to realize the flowing of fuel/reductive agent, oxygen-containing gas or raw material needed for required melting or melting condition by being ingested.Alternatively, head assembly or pyrometer device can by being attached to from the inlet end of spray gun elongate rod extending longitudinally in spray gun or conduit downwards, be relevant to top submergence to install with spraying spray gun, preferably between the surface of the adjacent pipe of pyrometer device and spray gun, provide support, to support pyrometer device and to be retained in the desired location in spray gun.If pyrometer device needs the coolant fluid by the circulation of pyrometer device casing, so that retainer member is in the envrionment temperature being suitable for the cause thermal damage prevented its operational unit, then can use the tubing system with coolant fluid supply and return line.But refrigerant is unnecessary for the parts of the pyrometer device be operable under sufficiently high envrionment temperature.Use for spraying the bar or conduit hanging pyrometer device in spray gun in top submergence has the benefit making device can remove (such as because maintenance or replacing) from spray gun.In addition, bar or conduit make pyrometer device can spray longitudinally adjustment in spray gun in top submergence, such as when spray gun need as a whole to raise or reduce or relative longitudinal position the needs adjustment relative at least one other pipeline of at least one pipeline of spray gun, in the process that pyrometallurgy operates or in order to allow at the wearing and tearing of lance outlet end place outer tube and the needs that flash back.
The amplifier unit of pyrometer device can be integrated in also containing in the public casing of acceptor unit, lens or detector cells.Alternatively, amplifier unit can such as be contained in separately outside top submergence injection spray gun.The output carrying out self-detector is nonlinear, and can be only about 100 to 1000 μ ν.If the output signal from detector cell is delivered to the amplifier unit of spray gun outside, then preferably this output signal is converted to the form allowing it via the optical cable externally transmission of amplifier unit, to reduce the deterioration of output signal to greatest extent.Alternatively, only utilize the acceptor unit being relevant to top submergence and installing with spraying spray gun, the infrared energy received can be sent to detector with there is no deteriorated risk by optical cable.
Several commercially available pyrometer device can use in temperature measurement equipment of the present invention.To the major requirement of pyrometer device be measure more than 1000 DEG C and may temperature higher than 2000 DEG C time the ability that reliably operates.In addition, although when pyrometer device can be cooled, reliably operate under the envrionment temperature that it preferably can be able to be exposed to up to about 450 DEG C at it, even if only when providing the system failure of flowing of coolant fluid to device.Pyrometer device can be that the operability of the radiant ratio data of the slag phase in cost and given molten bath is in the main determining factor selected between these replacement schemes with pyrometer device that the is single, double or operation of multi-wavelength thermometry.Example for the suitable pyrometer device of temperature measurement equipment of the present invention comprises M668 pyrometer model, the NEWPORTiR2 pyrometer of Newport electronics corporation and the PYROSPOTDSRF11N pyrometer of DiasInfraredGmbH that can obtain from Mikron infrared rays company.
It can be any form known that spray gun is sprayed in top submergence.Therefore, push up submergence spray spray gun can according to all authorize Floyd United States Patent (USP) 4251271 and 5251879, authorize any form disclosed in any one in the United States Patent (USP) 5308043 of Floyd etc. or any one office in our copending Patent application WO2013/000017, WO2013/029092 and PCT/IB2012/0567714.
Utilize temperature measurement equipment of the present invention, that good measurement of the temperature of the slag phase in molten bath becomes possibility, and in the process of the fire metallurgy process carried out with the spray gun of this equipment, this is very surprising.The exit end part of the spray gun in molten bath need not be immersed in, measure the attempt of the temperature of spraying the flame jet flow that spray gun produces after the mixture of fuel and oxygen has burnt with top submergence, be proved to be unsuccessful.Receive infrared energy that longitudinally enter into spray gun from exit end, that produced by flame, and seem pyrometer and only will measure flame temperature, and the useful information about bath temperature is not provided.That is, there are indications, about be immersed in molten bath slag mutually in the result of exit end part of spray gun, also can not provide the useful measurement of the temperature of slag phase, especially when supposing to result from the high level turbulent flow in the slag that submergence is sprayed.In addition, in the submergence spraying of top, slag is a kind of reaction medium, and in this reaction medium, stock dispersion also circulates, and they stand to be sprayed by top submergence selected by the reduction of conditions permit or oxidizing reaction.The composition of the slag phase and reaction product with the raw material of dispersion is different from the composition of independent slag completely.Therefore, this situation is extremely different from and is using infrared thermometry art to utilize solid (even if mobile) or utilizing the flowing steam of liquid of such as molten steel and so on, or situation about obtaining in temperature survey in the alkaline oxygen stove of the refining pig iron.In the case of the latter, top blowing oxygen conductance causes slag displacement is used for temperature survey to expose molten iron.The burning of fuel is there is not at the exit end tip place of this top-blown spray gun yet.When it is the temperature of the temperature required of iron instead of slag, iron presents the surface of relative constancy composition.In addition, as in the submergence spraying of top, BOF slag is in turbulence state, and does not provide and be suitable for thermometric surface of stability form.The total surface of the slag in top submergence spraying is broken, and a large amount of slag is ejected in the space reactor on molten bath and then falls after rise.Such ejection slag or the temperature being cooled to lower than molten slag layer, or more generally, utilizing the afterfire process of the flue gas (as carbon monoxide and hydrogen) distributed, to the object in molten bath, ejection slag being heated on the temperature of molten slag layer for reclaiming heat energy.Each of these factors shows, bath temperature can not use equipment of the present invention reliably to measure.
Although have about other purposes of infrared thermometry art and about the submergence of exit end part of spray gun of equipment of the present invention and the combustion crown submergence carried out spraying the experience of the tentative experiment of spray gun, but find surprisingly, according to the needs carrying out pyrometallurgy operation, the excellent temperature measurement utilizing the top submergence of equipment of the present invention to spray the exit end part of spray gun becomes possibility.Especially, equipment of the present invention allows the excellence of the temperature of the slag phase in molten bath in top submergence spraying to measure, and when slag mutually about given top submergence spraying, for react reaction medium time, this measurement is vital.In other techniques of such as union-melt weld smelting and so on, the temperature being in the metallographic phase under slag or reaction mixture is necessary measurement, but metallographic phase can not directly come-at-able (accessible) and compromise metering needle be made common comparatively sloppy heat slag or reaction mixture.
Temperature measurement equipment of the present invention can comprise a pyrometer device.In that case, each device can have at least one acceptor unit, it is relevant to top submergence and installs and can receive from described exit end longitudinally through the infrared energy in spray gun with spraying spray gun, and each energy focused IR heat input is so that its receives and allows the generation of corresponding output signal.Each pyrometer device can be arranged within the hole that limited by interior pipe.Alternatively or in addition, this pyrometer device can comprise at least one the pyrometer device in the circular channel that is arranged on and is limited between the intervalve of inner and outer tubes one of at least and between inner and outer tubes.
Accompanying drawing explanation
In order to the present invention can be understood more all sidedly, now accompanying drawing is quoted, in the accompanying drawings:
Fig. 1 is the partial cutaway view of top submergence injection reactor;
Fig. 2 illustrates the expression according to a temperature measurement equipment of the present invention form, and its end portion illustrates to amplify yardstick;
Fig. 3 is the fragmentary cross-sectional view of the parts of the bottom of another kind of form according to temperature measurement equipment of the present invention.
Fig. 4 illustrates the details of the parts on the top of the equipment being relevant to Fig. 3; With
Fig. 5 illustrates that the temperature measured over time in the half industrial plant test utilizing temperature measurement equipment of the present invention to carry out.
Embodiment
Reactor 10 is in FIG only the example that possible top submergence injection reactor and spray gun are arranged.Reactor 10 has cylindrical outer cover 12, is closed by pitched cover 14 on its top, and smoke-uptake 16 projects upwardly into flue gas boiler/heat exchanger 18 from pitched cover 14.In the illustration of FIG. 1, the rectangle part of shell 12 has been removed to make it possible to observe inside, although shell 12 is except portalling except (taphole), all levels on its height is all circumferential continuous print.Top cover 14 has entrance 20, and top submergence injection spray gun 22 passes downwardly through this entrance 20 and extends, so that after protectiveness slag coating 24 has been formed and has been set in the bottom of spray gun 22, the end portion of spray gun 22 is immersed in the top slag phase 28 in molten bath 26.Reactor 10 also has: by the opening for feed 29 of top cover 14 opening, can be loaded in the slag 28 in molten bath 26 to make the raw material for required pyrometallurgy operation; And burner port 30, for the burner 31 for reactor heating can be inserted when needed.Spray gun 22 has junctor 34, and it makes it possible to connect spray gun 22 to be separated the source of fuel/reductive agent and oxygen-containing gas, passes downwardly through spray gun 22 and mix to supply combustion mixt at the lower part outlet end of spray gun 22 to make the split tunnel of these materials.The burning of fuel and oxygen mixture produces zone of combustion and the strong turbulence in slag 28 in the slag 28 at the lower part outlet end place of spray gun 22, this strong turbulence results through the stock dispersion of outlet 29 loading in slag 28, so that the pyrometallurgy reaction required for producing in slag 28.
Spray gun 22 as shown in Figure 2 is schematic diagram of the lower end of a kind of form of the submergence injection spray gun in top with temperature measurement equipment.Spray gun 22 comprises outer tube 38, interior pipe 40 and the intervalve 42 between pipeline 38 and 40.The cross section of pipeline 38,40 and 42 is essentially circular, and arranges substantially concentricly.Being limited to circular channel 44 between pipeline 38 and 42 can air supply, and the passage 46 be limited between pipeline 40 and 42 can oxygen gas-supplying.The hole 48 limited by pipeline 40 can supply fuel/reductive agent.As shown in the figure, pipeline 40 and 42 terminates on the lower end of pipeline 38, relative to one section of short distance of the total length of spray gun 22, to provide mixing section 50, in this mixing section 50, fuel/reductive agent, air and oxygen mix are to promote that fuel is at the active combustion of pipeline 38 lower end.Spray gun 22 can have the length reaching about 25 meters and the external diameter reaching about 0.5 meter, so that commercial operation.Half industrial plant version of spray gun 22 may only have about 4 meters long and about 0.075 meter of external diameter.
A kind of form according to temperature measurement equipment of the present invention is illustrated in Fig. 2, and comprises the spray gun 22 combined with pyrometer device 52.The device 52 illustrated greatly enlargedly relative to the diameter of interior pipe 40 comprises sensor head, and in the layout illustrated, this sensor head is made up of the casing 56 comprising lens or sensor unit 54 and the optical cable 60 with the one end communicated with lens unit.Sensor head 54 is arranged in the lower ranges of interior pipe 40, and in this lower ranges, sensor head 54 provides the suitable framework of minimum obstruction or support (not shown) to support by flowing fuel/reductive agent being passed downwardly through to pipe 40.Sensor head 54 is positioned to receive upwards by lower end and longitudinally along this infrared energy that infrared energy and the focusing of spray gun 22 receive.The result that this layout can make lens unit 58 such as spray from the top submergence as spray gun 22, surface (as schematically described by the line 64) reception that formed in the layer of slag 28 by line 62 infrared energy in the cone described.The cone angle described by line 62 for lens unit 58 from the exit end of spray gun 22 distance be maximum because larger cone angle can cause the interference of to hit in pipeline 38 and 40 at least one from cone.Less cone angle may be suitable, because the spacing on the surface (infrared energy that radiation thereon receives) at lens unit 58 off-line 64 place needs substantially corresponding with the focal length of the lens of lens unit 58.Such as can have adjustable focal length from the available PYROSPOTDSRF11N of DiasInfraredGmbH.But shown layout provides the absolute visual field on infrared energy radiating surface, thus temperature is accurately allowed to determine.
In the arrangement of fig. 2, optical cable 60 is upward through interior pipe 40 from sensor head 54 and from the inlet end of spray gun 22 out, arrives the exterior case 66 containing detector cell 68, amplifier unit 70 and display device 72.Focused on the infrared energy that this sensor head 54 receives by lens unit 58, thus make the infrared energy of focusing be delivered to casing 66 along cable 60.Receive this energy by detector cell 68 and convert thereof into the output electrical signal amplified by amplifier unit 70, and passing to the indicating meter 72 of the reading showing slag temperature thereon.
If necessary, cable 60 the scope of interior pipe 40 can be in can be circulated to control sensor head 54 in the casing 56 especially envrionment temperature of lens unit 58 by its coolant fluid conduit in.
Although the temperature measurement equipment of Fig. 1 and 2 illustrate only the single pyrometer device 52 in spray gun 22, more than one device 52 can be there is at a spray gun 22, such as, reach 4 devices 52.These devices can all be in interior pipe 40, or have at least one can be between pipeline 40 and pipeline 42, and/or are between pipeline 38 and pipeline 42.
Description according to Fig. 1 and 2 is understood by Fig. 3 and 4 be arranged in a great extent.In figures 3 and 4, corresponding to the parts of those parts in Fig. 1 and 2, there is identical Reference numeral and add 100.Spray gun 122 have intervalve 142 and as in the diagram with in dotted outline see in pipe 140.Corresponding pipeline 142 and 140 is also called interior air/oxygen tracheae and fuel gas pipe.But pipeline 142 can along passage 146 oxygen gas-supplying be limited between pipeline 140 and 142 or oxygen-rich air, and pipeline 140 can supply the fine particulate coal or oil fuel or Sweet natural gas that are entrained in vector gas along the hole 148 limited by pipeline 140.In addition; although not shown; but spray gun 122 has the outer tube of the pipeline 38 corresponding to spray gun 22; air by be between outer tube and pipeline 142, supply corresponding to the circular channel of the passage 44 of spray gun 22, outer tube can be cooled and keep solidifying the protective coating of slag in enough parts of spray gun 122 lower ranges by air supply.
As finding in the diagram, the top of spray gun 122 or inlet end have and are fixed on pipeline 142 and the coupled apparatus 80 given prominence on pipeline 142, can be raised by overhead lifting system to make spray gun 122 and reduce.In addition, spray gun 122 has into opening connector 82, it is the flowing that fuel/reductive agent passes downwardly through the hole 148 of pipeline 140, and is communicated with pipeline 140, can supply Sweet natural gas (or other is applicable to push up the fuel/reductive agent of submergence spraying) from supply source.Junctor 82, through the wall of the separable upper part 142a of pipeline 142, is communicated with pipeline 140.The part 142a of pipeline 142 is coupled with the substantial scope 142b of pipeline 142 end-to-end by double flange sealed coupler 142c.In the level lower than junctor 82 and coupling 142c, spray gun 122 has junctor 84, and it is the flowing passing downwardly through passage 146, and is communicated with by pipeline 142, can supply oxygen-containing gas (as oxygen-rich air) from supply source.
Although not shown, the upper end of outer tube ends in a short distance under junctor 84.Other junctor (not shown) are the flowing of the circular channel passed downwardly through between outer tube and pipeline 142, and are communicated with the upper end by outer tube, so that can from supply source air supply.The flowing of air makes to be splashed to the apparent slag cooling of outer tube to form the protective coating solidifying slag, this protective coating can even when be immersed in slag mutually in time remain on spray gun 122 lower ranges on.
The layout caused by these other junctors and the junctor 82 and 84 for outer tube makes the gas sprayed for 122 to spray gun from passage 146 and the passage between outer tube and pipeline 142, mixes with the fuel/reductive agent from hole 148 in the lower end of spray gun 122.Therefore, fuel mixture can be formed in the lower end of spray gun 122, and when burnt, this mixture produces the combustion flame providing the burning of the fuel composition of fuel/reductive agent.Due to this lower end be immersed in slag mutually in be convenient to top submergence spray, combustion flame in the whole period of carrying out submergence injection, slag mutually in generation burn region.If the oxygen level of this mixture equals or exceeds the stoichiometric requirement of the burning for all fuel/reductive agents as fuel, then depend on the level of oxygen excess, by slag mutually in produce neutrality to oxidizing condition.Alternatively, due in mixture for inadequate oxygen of the burning of all fuel/reductive agents, part of fuel/reductive agent will not burn, thus will can be used as reductive agent use, reductive condition will be accounted for mainly in slag.Pipeline 140 but preferably also have pipeline 142, can relative short distance termination in its lower end on the lower end of outer tube, and mixing section (not shown) is such as formed in the lower end of outer tube in the mode of the chamber 50 being similar to spray gun 22.
Spray gun 122 also comprises its underpart 152a and illustrates in figure 3 and top 152b display pyrometer device in the diagram.Bottom 152a is arranged in the passage 146 near the outside surface of pipeline 140, and comprises in the lower region being arranged on spray gun 122, is adjacent to the sensor head 154 of the swirler 96 with multiple blade 98, the lower end being in optical cable 160.Cable 160 upwards passes through in path 146.As shown in Figure 4, the upper end of cable 160 forms a part of the top 152b of pyrometer device 152, upwards by entering the top of spray gun 122 in passage 146, arrives thereon by position that the sealing member in the part 142a of pipeline 142 exits.To be received by sensor head 154 and the infrared energy focused on can be delivered to detector cell 168 along optical cable 160.This infrared energy converts electrical signal to by detector cell 168.Electrical signal can be sent to electrical terminal block (not shown) and can monitor Signal aspects device or the register (also not shown) of the temperature of the slag that the top submergence through being exposed for required pyrometallurgy operation is sprayed by electric power and signal cable 92.
As being appreciated that the pyrometer device 152 of spray gun 122 is arranged between interior pipe 140 and intervalve 142 from Fig. 3 and 4, in the oxygen channel 146 between these pipelines 140,142.This is contrary with the layout of Fig. 2, and wherein device 52 is in the hole 48 of interior pipe 40.In fig. 2, device 52 is adjacent to the upper end of mixing section 50, and spray gun 122 preferably has mixing section, and device 152 is also positioned the upper end of adjacent mixing section.The layout of Fig. 2 is applicable to half industrial plant or low capacity top submergence injection reactor, although the layout of Fig. 3 and 4 is preferred for larger reactor especially.
When Fig. 5 provided and monitor that slag temperature is over time between the pyrometallurgy working life utilizing top submergence to spray, the result obtained in three and half industrial plant tests.The factory class used is similar to the factory shown in Fig. 1, has the spray gun according to Fig. 3 and 4.This spray gun is equipped with the Pyrospot44N pyrometer device that can obtain from the DIAS infrared system company of the Dresden of Germany.Slag temperature can be monitored to provide the continuous lines to shown in each test.For this point, detected infrared radiation is converted into electrical signal, and this signal transmission is to register.For each test, the temperature of slag also uses the disposable device of hand-held single measurement with distance measurement continuous time, and measure the rhombus shown in each test to produce, these measure the high precision that checking equipment of the present invention obtains.
Finally, should be appreciated that the structure of the parts described before various change, improvement and/or add can be incorporated into and in arranging and does not depart from the spirit or scope of the present invention.
Claims (19)
1. one kind for pushing up the temperature measurement equipment of submergence jet apparatus, between the pyrometallurgy working life of carrying out in the reactor of this device, for measuring the temperature in the molten bath comprising slag phase, wherein this equipment comprises top submergence injection spray gun, it has at least one outer tube and one manages, the hole limited by interior pipe and the circular channel that limits, inner surface portion ground by outer tube, and wherein this equipment also comprises pyrometer device, its at least one acceptor unit is relevant to top submergence and installs with spraying spray gun, this acceptor unit can receive from the exit end of spray gun longitudinally through the infrared energy in spray gun, and the infrared energy received by this pyrometer device can focus on, to make it possible to output signal or the display of the temperature producing instruction molten bath, wherein the exit end of spray gun to be partially immersed in molten bath and this infrared energy receives from molten bath.
2. temperature measurement equipment according to claim 1, wherein this pyrometer device comprises detector cell, and it from the infrared energy of acceptor unit collectiong focusing, and can produce corresponding electrical output signal.
3. temperature measurement equipment according to claim 2, wherein this detector cell is coupled to sensor head, and directly from the infrared energy of acceptor unit collectiong focusing.
4., according to the temperature measurement equipment of claim, wherein this detector cell is in submergence injection spray gun outside, top and is communicated with sensor head by optical cable.
5. according to the temperature measurement equipment of claim 3 or 4, wherein this pyrometer device comprises amplifier unit, and it can receive the output signal from detector cell, and produces amplification output signal.
6. temperature measurement equipment according to claim 5, wherein this amplifier unit is coupled to display device, and this display device can provide instruction by the display of this acceptor unit from the temperature in the molten bath of its receiving infrared-ray energy.
7., according to any one temperature measurement equipment in claim 1 to 6, wherein at least acceptor unit of this pyrometer device is relevant to top submergence and is arranged in the periphery of at least outer tube of spray gun with spraying spray gun.
8. temperature measurement equipment according to claim 7, wherein at least acceptor unit is in the circular channel between inner and outer tubes.
9. temperature measurement equipment according to claim 7, wherein this top submergence injection spray gun comprises at least one intervalve be between inner and outer tubes, and this acceptor unit is between outer tube and the interior pipe of the next one, or between two intervalves, or between interior pipe and next outermost tubes.
10. temperature measurement equipment according to claim 7, wherein this acceptor unit is in the periphery of interior pipe.
11. according to any one temperature measurement equipment in claim 1 to 10, and wherein at least acceptor unit of this pyrometer device separates with each of spraying in the entrance and exit end of spray gun of top submergence.
12. temperature measurement equipments according to claim 11, wherein at least the exit end of this acceptor unit and spray gun separates the sub-fraction of the length of spray gun.
13. according to any one temperature measurement equipment in claim 1 to 12, and wherein at least this acceptor unit is oriented to the substantially parallel axis of cone line of the longitudinal axis that acceptor unit had spray spray gun with top submergence.
14. according to any one temperature measurement equipment in claim 1 to 13, wherein this interior pipe and optional any intervalve end in a short distance of lance outlet end place outer tube end, to limit mixing section in lance outlet end portion, and at least acceptor unit of this pyrometer device be relevant to spray gun ground, or the inner pipe end that is adjacent to closer to the exit end of spray gun as installed in the hole of interior pipe.
15. according to any one temperature measurement equipment in claim 1 to 14, wherein this equipment comprises at least two described pyrometer devices, each pyrometer device has at least one acceptor unit part, it is relevant to top submergence and installs with spraying spray gun and can receive from described exit end longitudinally by the infrared energy in spray gun, and each pyrometer device can focus on its infrared energy received and can produce corresponding described output signal.
16. temperature measurement equipments according to claim 15, wherein each pyrometer device is installed in the hole that limited by interior pipe.
17. temperature measurement equipments according to claim 15, wherein equipment described at least one is installed in circular channel, and this circular channel to be limited in inner and outer tubes between at least one and the intervalve between interior pipe and outer tube.
18. according to any one temperature measurement equipment in claim 1 to 17; wherein this top submergence injection spray gun is adapted so that in use; only as passing through a kind of gas of lance ejection or the result of multiple gases, it is cooled and keeps protective solid slag coating thus.
19. according to any one temperature measurement equipment in claim 1 to 17; wherein this top submergence injection spray gun is adapted so that in use; as the result of the combination cooling performance by a kind of gas of lance ejection or the circulation of multiple gases and coolant fluid, it is cooled and keeps protective solid slag coating.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2013204818 | 2013-04-12 | ||
| AU2013204818A AU2013204818B2 (en) | 2013-04-12 | 2013-04-12 | Molten bath temperature measurement for a top submerged lance injection installation |
| PCT/IB2014/060638 WO2014167532A1 (en) | 2013-04-12 | 2014-04-11 | Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105264095A true CN105264095A (en) | 2016-01-20 |
Family
ID=50630831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480023504.3A Pending CN105264095A (en) | 2013-04-12 | 2014-04-11 | Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US10018509B2 (en) |
| EP (1) | EP2984189B1 (en) |
| KR (1) | KR101742901B1 (en) |
| CN (1) | CN105264095A (en) |
| AU (1) | AU2013204818B2 (en) |
| CL (1) | CL2015002996A1 (en) |
| EA (1) | EA029772B1 (en) |
| ES (1) | ES2636242T3 (en) |
| PL (1) | PL2984189T3 (en) |
| WO (1) | WO2014167532A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910716A (en) * | 2016-06-06 | 2016-08-31 | 中冶赛迪工程技术股份有限公司 | Non-contact electric-arc-furnace continuous temperature measuring gun structure |
| CN107881291A (en) * | 2017-12-06 | 2018-04-06 | 宝钢工程技术集团有限公司 | A kind of vacuum refining top gun and its system and temp measuring method |
| CN112683074A (en) * | 2020-12-16 | 2021-04-20 | 铜陵德兴机械制造有限责任公司 | Top-blown furnace spray gun and special maintenance method thereof |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI126660B (en) | 2014-04-11 | 2017-03-31 | Outotec Finland Oy | PROCEDURES AND ARRANGEMENTS FOR MONITORING THE PERFORMANCE OF A SIGNER BURNER |
| CN106662404B (en) * | 2014-08-21 | 2018-10-02 | Abb瑞士股份有限公司 | System and method for the temperature for determining the metal bath in electric arc furnaces |
| KR102034940B1 (en) * | 2014-12-24 | 2019-10-21 | 오토텍 (핀랜드) 오와이 | A system and method for collecting and analysing data relating to an operating condition in a top-submerged lancing injector reactor system |
| KR102022170B1 (en) * | 2014-12-24 | 2019-09-17 | 오토텍 (핀랜드) 오와이 | A sensing device for determining an operational condition in a molten bath of a top-submerged lancing injector reactor system |
| DE102019102486A1 (en) * | 2019-01-31 | 2020-08-06 | Beda Oxygentechnik Armaturen Gmbh | Display device for dangerous situations |
| CN111088414A (en) * | 2019-12-17 | 2020-05-01 | 湖北理工学院 | Oxygen lance with online continuous temperature measurement function and use method thereof |
| CN110842156A (en) * | 2019-12-26 | 2020-02-28 | 南京佛利蒙特测控技术有限公司 | Infrared device directly mounted on ladle roaster for measuring roasting temperature |
| CN113832283B (en) * | 2020-06-24 | 2023-02-07 | 上海梅山钢铁股份有限公司 | Molten steel temperature prediction method based on fire hole flame |
| WO2024089482A1 (en) * | 2022-10-25 | 2024-05-02 | Frederik Petrus Greyling | Real time slag temperature control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090524A (en) * | 2001-09-14 | 2003-03-28 | Takuma Co Ltd | Molten metal temperature measuring device for melting furnace |
| US6558614B1 (en) * | 1998-08-28 | 2003-05-06 | Voest-Alpine Industrieanlagenbau Gmbh | Method for producing a metal melt and corresponding multifunction lance |
| CN101009042B (en) * | 2006-01-26 | 2010-09-29 | 贺利氏电子耐特国际股份公司 | Device for ascertaining parameter of molten metal or of slag layer on the molten metal |
| WO2013029092A1 (en) * | 2011-09-02 | 2013-03-07 | Outotec Oyj | Lances for top submerged injection |
Family Cites Families (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2054382A (en) * | 1935-07-16 | 1936-09-15 | United States Steel Corp | Radiation pyrometer device |
| US2102955A (en) * | 1935-09-05 | 1937-12-21 | Chile Exploration Company | Temperature measuring installation |
| US2465322A (en) * | 1944-06-23 | 1949-03-22 | Honeywell Regulator Co | Target tube for radiation pyrometers |
| US3223398A (en) | 1963-02-20 | 1965-12-14 | Kaiser Ind Corp | Lance for use in a basic oxygen conversion process |
| US3269829A (en) | 1963-09-24 | 1966-08-30 | United States Steel Corp | Method and apparatus for introducing steam and oxygen into a bath of molten steel |
| BE648779A (en) | 1963-10-23 | 1964-10-01 | ||
| FR84791E (en) | 1963-11-25 | 1965-04-16 | Siderurgie Fse Inst Rech | Adjustable insufflation lance for fine particles in suspension |
| GB1130845A (en) | 1966-04-13 | 1968-10-16 | Noranda Mines Ltd | Method and apparatus for controlling the temperature of metal lances in molten baths |
| US3411716A (en) | 1966-05-11 | 1968-11-19 | United States Steel Corp | Oxygen lance for steelmaking furnaces |
| US3488044A (en) | 1967-05-01 | 1970-01-06 | Nat Steel Corp | Apparatus for refining metal |
| US3452598A (en) * | 1967-09-06 | 1969-07-01 | Leeds & Northrup Co | Immersion radiation pyrometer device |
| US3876190A (en) | 1969-06-25 | 1975-04-08 | Commw Ind Gases | Method and apparatus for feeding particulate materials to furnaces and the like |
| US3730505A (en) | 1970-07-01 | 1973-05-01 | Centro Speriment Metallurg | Double delivery lance for refining the steel in the converter processes |
| AT307081B (en) * | 1970-08-17 | 1973-05-10 | Voest Ag | Device for continuous measurement of the temperature of metal baths in melting or refining furnaces |
| US3723096A (en) * | 1970-11-09 | 1973-03-27 | Kaiser Ind Corp | Production of metals from metalliferous materials |
| FR2131674A5 (en) | 1971-04-10 | 1972-11-10 | Messer Griesheim Gmbh | |
| US3813943A (en) * | 1972-03-03 | 1974-06-04 | Bethlehem Steel Corp | Apparatus for inserting an expendable sensor into a basic oxygen furnace |
| US3828850A (en) | 1973-07-12 | 1974-08-13 | Black Sivalls & Bryson Inc | High temperature material introduction apparatus |
| US3889933A (en) | 1974-02-28 | 1975-06-17 | Int Nickel Canada | Metallurgical lance |
| BE849582R (en) | 1976-01-07 | 1977-04-15 | Rene Desaar | POCKET CAST IRON DESULFURATION LANCE |
| US4023676A (en) | 1976-09-20 | 1977-05-17 | Armco Steel Corporation | Lance structure and method for oxygen refining of molten metal |
| GB1599366A (en) | 1977-05-09 | 1981-09-30 | Commw Scient Ind Res Org | Submerged injection of gas into liquid pyro-metallurgical bath |
| US4326701A (en) | 1979-09-29 | 1982-04-27 | Kaiser Steel Corporation | Lance apparatus |
| FR2496699B1 (en) | 1980-12-22 | 1985-06-21 | Siderurgie Fse Inst Rech | BLOWING NOZZLE FOR OXIDIZING GAS, ESPECIALLY OXYGEN, FOR THE TREATMENT OF FUSED METALS |
| JPS58185707A (en) | 1982-04-23 | 1983-10-29 | Sumitomo Metal Ind Ltd | Refining method of steel |
| US4433832A (en) * | 1982-12-27 | 1984-02-28 | Inland Enterprises, Inc. | Metallurgical lance |
| US4762571A (en) * | 1986-03-14 | 1988-08-09 | General Signal Corporation | Expendable immersion device for combining an expendable immersion sensor and molten metal sampler |
| JPS6362812A (en) | 1986-09-01 | 1988-03-19 | Nippon Kokan Kk <Nkk> | Detector for slag foaming in converter |
| US4737038A (en) * | 1987-01-15 | 1988-04-12 | Vanzetti Systems | Immersion infrared thermometer for molten materials |
| JP2606268B2 (en) * | 1988-03-29 | 1997-04-30 | 三菱マテリアル株式会社 | Temperature control method for blowing furnace |
| DE3823373A1 (en) * | 1988-07-09 | 1990-01-11 | Zeiss Carl Fa | METHOD FOR DETECTING THE TEMPERATURE OF MEASURING OBJECTS ON COORDINATE MEASURING DEVICES |
| EP0493476B1 (en) | 1989-09-29 | 1998-12-02 | Ausmelt Limited | Top submerged injection with a shrouded lance |
| IN181041B (en) | 1991-09-20 | 1998-04-18 | Ausmelt Ltd | |
| BR9206507A (en) * | 1991-09-20 | 1995-10-24 | Ausmelt Ltd | Process for the production of iron |
| AUPM657794A0 (en) | 1994-06-30 | 1994-07-21 | Commonwealth Scientific And Industrial Research Organisation | Copper converting |
| US5772324A (en) * | 1995-10-02 | 1998-06-30 | Midwest Instrument Co., Inc. | Protective tube for molten metal immersible thermocouple |
| TW337553B (en) | 1995-12-20 | 1998-08-01 | Voest Alpine Ind Anlagen | Method for determination of electromagnetic waves originating from a melt |
| KR100270113B1 (en) * | 1996-10-08 | 2000-10-16 | 이구택 | The low carbon steel making device |
| FR2773213B1 (en) * | 1996-12-11 | 2001-08-24 | Omega Engineering | METHOD AND DEVICE FOR INFRARED MEASUREMENT OF THE SURFACE TEMPERATURE |
| WO1999020988A1 (en) * | 1997-10-20 | 1999-04-29 | Texaco Development Corporation | Apparatus for measuring temperature inside reactors |
| RU2148802C1 (en) | 1999-01-27 | 2000-05-10 | Институт физики полупроводников СО РАН | Device for detection of heat radiation |
| AUPQ783100A0 (en) | 2000-05-30 | 2000-06-22 | Technological Resources Pty Limited | Apparatus for injecting solid particulate material into a vessel |
| ITMI20012278A1 (en) * | 2001-10-30 | 2003-04-30 | Techint Spa | DEVICE AND METHOD FOR DISCRETE AND CONTINUOUS MEASUREMENT OF THE TEMPERATURE OF LIQUID METAL IN AN OVEN OR CONTAINER FOR ITS PRODUCTION |
| AT412283B (en) * | 2003-05-16 | 2004-12-27 | Voest Alpine Ind Anlagen | METHOD FOR RECYCLING SLAG |
| WO2005098059A1 (en) * | 2004-04-07 | 2005-10-20 | Ausmelt Limited | Process for copper converting |
| EP2290310A1 (en) * | 2009-07-31 | 2011-03-02 | Siemens Aktiengesellschaft | Method for dynamic regulation of at least one burner composed of at least one unit and device for carrying out the method |
| US8623114B2 (en) * | 2010-02-16 | 2014-01-07 | Praxair Technology, Inc. | Copper anode refining system and method |
| EP2538187A1 (en) * | 2011-06-24 | 2012-12-26 | Jyoti Goda | An immersion type sensor for measuring temperature of molten metals and the like |
| EP2726803B1 (en) | 2011-06-30 | 2017-05-17 | Outotec (Finland) Oy | Top submerged injecting lances |
| PE20141641A1 (en) * | 2011-11-30 | 2014-11-18 | Outotec Oyj | REFRIGERATED FLUID LANES FOR TOP SUBMERGED INJECTION |
| US20130327971A1 (en) * | 2012-06-07 | 2013-12-12 | Casidy Anise Anderson | Ratcheting Handwheel for Compressed Gas Cylinders |
| EP3058109B1 (en) * | 2013-10-16 | 2017-03-22 | Outotec (Finland) Oy | Top submerged injection lance for enhanced submerged combustion |
-
2013
- 2013-04-12 AU AU2013204818A patent/AU2013204818B2/en active Active
-
2014
- 2014-04-11 WO PCT/IB2014/060638 patent/WO2014167532A1/en active Application Filing
- 2014-04-11 PL PL14721018T patent/PL2984189T3/en unknown
- 2014-04-11 KR KR1020157030643A patent/KR101742901B1/en active IP Right Grant
- 2014-04-11 ES ES14721018.1T patent/ES2636242T3/en active Active
- 2014-04-11 US US14/783,233 patent/US10018509B2/en active Active
- 2014-04-11 CN CN201480023504.3A patent/CN105264095A/en active Pending
- 2014-04-11 EA EA201591836A patent/EA029772B1/en not_active IP Right Cessation
- 2014-04-11 EP EP14721018.1A patent/EP2984189B1/en active Active
-
2015
- 2015-10-08 CL CL2015002996A patent/CL2015002996A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6558614B1 (en) * | 1998-08-28 | 2003-05-06 | Voest-Alpine Industrieanlagenbau Gmbh | Method for producing a metal melt and corresponding multifunction lance |
| JP2003090524A (en) * | 2001-09-14 | 2003-03-28 | Takuma Co Ltd | Molten metal temperature measuring device for melting furnace |
| CN101009042B (en) * | 2006-01-26 | 2010-09-29 | 贺利氏电子耐特国际股份公司 | Device for ascertaining parameter of molten metal or of slag layer on the molten metal |
| WO2013029092A1 (en) * | 2011-09-02 | 2013-03-07 | Outotec Oyj | Lances for top submerged injection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910716A (en) * | 2016-06-06 | 2016-08-31 | 中冶赛迪工程技术股份有限公司 | Non-contact electric-arc-furnace continuous temperature measuring gun structure |
| CN107881291A (en) * | 2017-12-06 | 2018-04-06 | 宝钢工程技术集团有限公司 | A kind of vacuum refining top gun and its system and temp measuring method |
| CN112683074A (en) * | 2020-12-16 | 2021-04-20 | 铜陵德兴机械制造有限责任公司 | Top-blown furnace spray gun and special maintenance method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150140305A (en) | 2015-12-15 |
| ES2636242T3 (en) | 2017-10-05 |
| EA029772B1 (en) | 2018-05-31 |
| EA201591836A1 (en) | 2016-04-29 |
| AU2013204818B2 (en) | 2015-02-19 |
| US20160069748A1 (en) | 2016-03-10 |
| EP2984189A1 (en) | 2016-02-17 |
| EP2984189B1 (en) | 2017-06-28 |
| AU2013204818A1 (en) | 2014-10-30 |
| US10018509B2 (en) | 2018-07-10 |
| PL2984189T3 (en) | 2017-10-31 |
| CL2015002996A1 (en) | 2016-10-07 |
| KR101742901B1 (en) | 2017-06-01 |
| WO2014167532A1 (en) | 2014-10-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105264095A (en) | Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation | |
| EP2751297B1 (en) | Lances for top submerged injection | |
| CA2947673C (en) | Metal making lance with spring-loaded thermocouple or camera in lance tip | |
| CN105369009B (en) | A kind of temp measuring system and temp measuring method of electric-arc furnace steelmaking on-line measurement molten steel temperature | |
| US10400293B2 (en) | Metal making lance with infrared camera in lance head | |
| US3080755A (en) | Metallurgical process control | |
| US3642060A (en) | Water-cooled apparatus | |
| US11053559B2 (en) | Melting and refining furnace for cold iron source and method of operating melting and refining furnace | |
| CA1191680A (en) | Liquid-cooled lance for blowing oxygen onto a steel bath | |
| CN106017070A (en) | Top-bottom combined blowing furnace | |
| US3747408A (en) | Temperature measurement | |
| JP5113075B2 (en) | In-furnace material detection system for metal production lances | |
| JPS5827919A (en) | Empty aod converter preheating and heating method | |
| RU2431683C2 (en) | Procedure for heating and melting metals and other materials with laser beams in aggregates with optic non-transparent atmosphere | |
| JPS6252423A (en) | Method and apparatus for continuously measuring temperature of molten metal | |
| JPS5834528B2 (en) | Blowing method of bottom blowing converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160120 |
|
| RJ01 | Rejection of invention patent application after publication |